228 ME. J. S. BALT ON THE COLOMBIAN 



than half the length of the fourth ; labrum dark piceous. Thorax 

 more than one half broader than long ; sides sinuate and parallel 

 behind the middle, rounded just above the latter, thence converg- 

 ing to the apex ; disk smooth, impunctate, impressed on either side 

 with a deep fovea. Elytra broader than the thorax, oblong-ovate, 

 slightly dilated from the base towards the apex, the latter broadly 

 rounded. ; above moderately convex, faintly excavated below the 

 basilar space, finely punctured; each elytron with the apex, the 

 outer limb, and two spots placed transversely just below the base, 

 yellow — one spot, rotuudate, is placed between the humeral callus 

 and the suture ; the other wedge-shaped, covers the lower half of 

 the humeral callus, its narrow apex extending upwards along the 

 outer border of the callus and being sometimes confluent with 

 the outer limb ; in addition, on the disk of each elytron are two 

 concolorous fasciae abbreviated at either end, one just below 

 the middle, the other half way between the middle and the apex. 



34. DiABROTiCA HEXASPiLOTA. Elongate- ovata, palliiie prasina; 

 capite piceo-fulvo, nietathorace antennisque (harum articulo basali 

 prasino excepto) piceis ; labro, tibiis tarsisque nigris ; thorace trans- 

 verso, utrinque leviter foveolato ; elytris sat crebre punctatis, utrisque 

 macula subbasali, super eallum humeralem, piceo tincta, duabusque 

 parvis juxta suturam, una prope medium, altera inter medium et 

 apicem, flavis. Long. 2i lin. 



Hab. Ubaque. 



JFront impressed with a deep fovea ; carina ill- defined ; antennae 

 filiform, second and third joints short, the latter slightly longer 

 than the former, much shorter than the fourth. Thorax scarcely 

 one fourth broader than long ; sides parallel from the base to 

 beyond the middle, thence obliquely converging to the apex, the 

 anterior angles obtuse, the hinder ones acute ; disk smooth and 

 shining, impressed on either side with a shallow fovea. Elytra 

 oblong-ovate, minutely but rather closely punctured. 



35. DiABROTiCA viRGXNELLA. Elongato-ovata, convexa, prasina, 

 nitida ; capite, scutello, tibiis tarsisque nigris ; abdoraine flavo; thorace 

 Isevi, disci medio excavate, obsolete bifeveelate ; elytris distincte sub- 

 crebre punctatis,linea suturali vittaque submarginali,ante apicem abbre- 

 viata, basi linea brevi cum connexa, nigris. Long. 3 lin. 



Sab. Venezuela: a single specimen from the late Mr. Saunders's 

 collection. 



Head longer than broad, triangular; basal joint of antennae 



